Global Patent Index - EP 2946259 B1

EP 2946259 B1 20191030 - SOFT START CIRCUITS AND TECHNIQUES

Title (en)

SOFT START CIRCUITS AND TECHNIQUES

Title (de)

SANFT ANLAUFENDE SCHALTUNGEN UND VERFAHREN DAFÜR

Title (fr)

TECHNIQUES ET CIRCUITS DE DÉMARRAGE EN DOUCEUR

Publication

EP 2946259 B1 20191030 (EN)

Application

EP 14702171 A 20140115

Priority

  • US 201313756922 A 20130201
  • US 2014011577 W 20140115

Abstract (en)

[origin: US2014217999A1] A regulator control circuit includes a switch control signal generator to generate a switch control signal and a soft start circuit to generate a soft start signal for use by the switch control signal generator. The soft start circuit includes a soft start controller and a decreasing circuit to decrease the soft start signal in response to the soft start controller. The soft start controller may comprise a non-regulation detector to detect a non-regulation condition. Embodiments include decreasing the soft start signal in response to a non-regulation condition lasting a predetermined time, detecting the non-regulation condition in response to a maximum duty cycle of the regulator switch, generating a soft start level indicator to control decreasing the soft start signal, and maintaining the soft start signal at a predetermined relationship with respect to a feedback signal.

IPC 8 full level

G05F 1/46 (2006.01); H02M 1/36 (2007.01); H02M 3/00 (2006.01); H02M 3/156 (2006.01)

CPC (source: EP US)

G05F 1/46 (2013.01 - EP US); G05F 1/468 (2013.01 - EP US); H02M 1/36 (2013.01 - EP US); H02M 3/156 (2013.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

US 2014217999 A1 20140807; US 9285812 B2 20160315; EP 2946259 A2 20151125; EP 2946259 B1 20191030; JP 2016505238 A 20160218; JP 6175147 B2 20170802; KR 101912211 B1 20181026; KR 20150113028 A 20151007; WO 2014120439 A2 20140807; WO 2014120439 A3 20141224

DOCDB simple family (application)

US 201313756922 A 20130201; EP 14702171 A 20140115; JP 2015556036 A 20140115; KR 20157022503 A 20140115; US 2014011577 W 20140115